Calamity Mod Wiki
Amalgamated Brain
  • Amalgamated Brain.png
Stack digit 1.png
TypeAccessoryCrafting material
Tooltip10% increased damage
Shade rains down when you are hit
You will confuse nearby enemies when you are struck
Inflicts DebuffConfusedConfused
Debuff duration5-8 seconds
Debuff tooltipMovement is reversed
RarityRarity Level: 4
Sell 2 Gold Coin.png 40 Silver Coin.png
Projectile created
Aura Rain
Shade Rain

The Amalgamated Brain is a craftable Hardmode accessory. It grants an increase to all damage types, causes shade to rain down when invincibility frames are active, and has a chance to inflict Confused on nearby enemies when the player is hit. The chance to inflict Confused and its duration both scale with the damage the player took. This accessory can be considered the Corruption counterpart to the Bloody Worm Scarf, even though they both can be crafted regardless of the world evil.



Crafting Station
Iron AnvilIron Anvil
Lead AnvilLead Anvil
Rotten BrainRotten Brain1
Brain of ConfusionBrain of Confusion1
Soul of NightSoul of Night3
Amalgamated BrainAmalgamated Brain1

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  • Shade rain deals magic damage and benefits from magic bonuses. However, its damage cannot be increased through any means.
  • The shade rain has a base damage of 60.


  • If the player lives in a Corruption world, defeating the Eater of Worlds will allow the Dryad to sell the Brain of Confusion. Conversely, she will start selling the Rotten Brain if the player defeats The Perforators in a Crimson world.
  • While the Bloody Worm Scarf is geared towards melee users, the Amalgamated Brain is geared towards all types of classes, as it increases damage for all classes.